Phanerozoic Collection (page 5)

Photomicrograph: Acanthomorph acritarch, microfossil

Palaeosmunda williamsonii, fern
Petrified trunk of the fern Palaeosmunda williamsonii, approximately 4cm wide, from Rockhampton, Queensland, Australia, dating back to the Permian Period, about 250 - 299 million years ago

Arsinotherium skeleton
Mounted skeleton of an Oligocene, 35 million year old rhinoceras-like ungulate from Egypt. Complete mounted skeleton

Columber kargi

Excavating a Mosasaur skull
Title page picture from Histoire Naturelle de la Montagne de St Pierre de Maestricht by Faujas de Saint Fond, 1799. Mosasaur was a carnivorous marine reptile from the Cretaceous period

Geosaurus gracilis
The fossil skeleton of the Geosaurus gracilis, an extinct aquatic crocodylian which lived during the Upper Jurassic and Lower Cretaceous periods

Diatryma steini skull
Specimen of a Diatryma steini skull found in South Elk Creek, Bighorn basin, Wyoming, USA. Lower Eocene, 55-50 million years old

Mayfly in Baltic amber
A well-preserved Mayfly, Ephemeroptera: Heptageniidae in Baltic amber. Specimen originates from the Upper Eocene

Sigillaria mamillaris (Brongniart), Lycopod
Part of a stem of a Sigillaria mamillaris, a lycopod, a Carboniferous plant. Upper Carboniferous; Darton, near Barnsley, South Yorkshire, Range: Genus, Carboniferous-Permian, Species, Westphalian

Angiosperm leaf in Baltic amber
Eudaphniphyllum leaf in preserved Baltic amber, dating from the Upper Eocene, about 35 million years old. Amber is fossilised tree resin

Acacia-like pod
Part of Acacia-like pod, 14 cm long, from the Eocene of the Paris Basin

Stonefly in amber
A Stonefly, Plecoptera: Leuctridae preserved in Baltic amber. Specimen dates from the Upper Eocene

Priscacara clivosa, fossil fish
A fossilised fish originating from the Eocene epoch 58-37 milion years ago. Found in Wyoming, USA

Flat-footed beetle in amber
A flat-footed beetle preserved in Dominican amber. This specimen dates from the Lower Miocene period

Dolichopodidae, long-legged fly in amber
Long-legged fly preserved in Baltic amber. Specimen dates from the Upper Eocene

Stick insect in amber
A stick insect, Phasmatodea preserved in Baltic amber. Specimen dates from the Upper Eocene

Barklouse in amber
A Barklouse, Pscoptera preserved in Dominican amber. Specimen dates from the Lower Miocene

Dance fly in amber
A dance fly preserved in Baltic amber. This specimen dates from the Upper Eocene

Hastings amber
This amber is from the Lower Cretaceous rocks of Hastings, East Sussex. Amber is fossilised tree resin

Hurdia victoria, ancient fossil
This fossil dates from the Middle Cambrian rocks of the Burgess Shale, British Columbia

Snipe fly in amber
Snipe fly in Baltic amber dating from the Upper Eocene period and is about 35 million years old

Fossil leaf miner
A leaf miner has left a snaking trail in this leaf from the Middle Eocene of Bournemouth, England

Cypress twig in Baltic amber
A cypress twig in Baltic amber dating from the Upper Eocene. Amber is fossilised tree resin. Image from Amber the Natural Time Capsule (1998) by Andrew Ross

Eolates gracilis, fossil fish
A fossil fish originating from the Eocene rocks, Monte Bolca, Italy. Fish specimen is 16.5 cms long

Horsefly in Baltic amber
A horsefly, Diptera: Brachycera: Tabanidae trapped in Baltic amber and dates from the Upper Eocene. Amber is fossilised tree resin

Lacewing larva in amber
Lacewing larva preserved in Baltic amber. This specimen dates from the Upper Eocene

Agnostid trilobite of Cambrian age, found in deep water. It is a blind trilobite of only a few millimetres long, with only two thoracic segments

Conodont fossils
Scanning electron microscope image of fossils from the Devonian period of northern Estonia, about 465 Ma old ( x 4.2). These creatures are still a mystery to paleontologists

Oxynoticeras oxynotum, ammonite
Shown here is the ventral view of this Lower Jurassic oxycone ammonite

Aulacostephanus autissiodorensis, ammonite
Shown here is an Upper Jurassic macroconch (larger form) ammonite. Despite some damage to the shell, the fine ribbing is still apparent

Triassic and Devonian rocks
An angular unconformity between two rock formations: Triassic rocks (horizontal) on Devonian rocks (inclined at about 40 degrees), western England, UK

Ostracods
Small arthropods with two valves. These examples are Jurassic in age

Gryphaea incurva, oyster
Fossil oyster also known as the Devils Toenail, specimen from the Lower Lias, Gloucestershire

Polygonal corallites
The simple, polygonal corallites of favosites are well seen in this 6 cm high polished block from the Devonian of south-west England

Sinospirifer sp. stone swallow (Shih-yen) brachiopods
A collection of stone swallow (Shih-yen) brachiopods from the Devonian rocks of China

Leedsichthys problematicus
Fossilised tail of a Leedsichthys problematicus, the giant Middle Jurassic fish which is the largest fish known to have ever inhabited the Earths oceans

Hexagonella, bryozoan
A 5 cm long branch of Hexagonella from the Permian of Australia. This cystoporate bryozoan has polygonal subcolonies bounded by ridges

Diplodocus skeleton
Weighing around 20 tonnes & reaching up to 26 metres in length Diplodocus is one of the worlds longest dinosaurs to have been discovered. It was first described by Marsh in 1878

Remopeurides, a fossil trilobite
Probably planktonic, Remopeurides is a small trilobite - this Scottish Ordovician example being less than 2 cm long - with an inflated glabella

Metaldetes
A small block of limestone, 5 cm across, from the Cambrian of South Australia, containing sectioned specimens of the archaeocyathan sponge Metaldetes

Goniatites, fossil ammonite
In marked contrast to Dactylioceras, this Carboniferous Goniatites has a shell in which successive whols overlap stongly, giving a narrow, deep umbilicus

Upper premolar of Stephanorhinus hundsheimensis
Upper premolar of an exinct rhino found during the Boxgrove excavation. Boxgrove is a Middle Pleistocene site in West Sussex, England

Plagiostoma, fossil shell
This shell of Plagiostoma from the British Jurassic measures 8.5 cm wide and shows radial ornamentation and growth banding

Gonioteuthis, a fossil belemnite
Guard of the belemnite Gonioteuthis, 8 cm long, from the Cretaceous Chalk of Salisbury, England

Elrathia kingii, trilobites
Elrathia kingii in rock matrix, from Middle Cambrian, Wheeler Shale, House Range, Utah, USA

Didymograptus, fossil graptolite
The two tuning-fork graptolite on this piece of Welsh Ordovician shale belong to the genus Didymograptus and have branches some some 5 cm in length with sawtooth-like thecae

Gonioclymenia laevigata, ammonoid
An extinct, marine fossil invertebrate from the class Cephalopoda belonging in the phylum Mollusca (molluscs). Photographed by Beatriz Aguirre-Urreta

Roman lamp and fossil brachiopod
PDT replica of roman lamp and the fossil brachiopod (Terebratula maxima Charlesworth) from the Pliocene. Coralline Crag. Park Pit, Sudbourne Park, Suffolk

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